diff --git a/src/i18n/locales/en-US.ts b/src/i18n/locales/en-US.ts
index a4f3cd82..cf2eae8d 100644
--- a/src/i18n/locales/en-US.ts
+++ b/src/i18n/locales/en-US.ts
@@ -1096,7 +1096,7 @@ export default {
         "tips":"Voice Call Statistics Per Minute",
         "ne":"NE",
         "now":"Now",
-        "last":"Last",
+        "last":"Past",
         "calls":"Calls",
         "activeCall":"Active Calls",
         "callMOMT":"MO/MT Call Success Rate",
diff --git a/src/views/perfManage/overview/index.vue b/src/views/perfManage/overview/index.vue
index 50a5e3a8..9ab2e2d9 100644
--- a/src/views/perfManage/overview/index.vue
+++ b/src/views/perfManage/overview/index.vue
@@ -218,7 +218,7 @@
 import { ref, onMounted, onBeforeUnmount, watch,nextTick } from 'vue'
 import * as echarts from 'echarts/core'
 import { LineChart } from 'echarts/charts'
-import { GridComponent } from 'echarts/components'
+import { GridComponent ,GraphicComponent} from 'echarts/components'
 import { CanvasRenderer } from 'echarts/renderers'
 import useNeInfoStore from '@/store/modules/neinfo'
 import { WS } from '@/plugins/ws-websocket'
@@ -226,7 +226,7 @@ import { listKPIData ,getbusyhour, getMosHour, getCctHour} from '@/api/perfManag
 import { RESULT_CODE_SUCCESS } from '@/constants/result-constants'
 import useI18n from '@/hooks/useI18n';
 const { t } = useI18n();
-echarts.use([LineChart, GridComponent, CanvasRenderer])
+echarts.use([LineChart, GridComponent, CanvasRenderer, GraphicComponent])
 
 const callsChartRef = ref<HTMLDivElement | null>(null)
 const mosChartRef = ref<HTMLDivElement | null>(null)
@@ -407,10 +407,14 @@ async function fetchMosData(neId: string) {
     } else {
       console.warn('获取MOS数据失败或数据为空')
       mosData.value = null
+      // 确保图表也更新为空状态
+      updateMosChart()
     }
   } catch (error) {
     console.error('获取MOS数据出错:', error)
     mosData.value = null
+    // 确保图表也更新为空状态
+    updateMosChart()
   }
 }
 
@@ -444,10 +448,14 @@ async function fetchCctData(neId: string) {
     } else {
       console.warn('获取CCT数据失败或数据为空')
       cctData.value = null
+      // 确保图表也更新为空状态
+      updateCctChart()
     }
   } catch (error) {
     console.error('获取CCT数据出错:', error)
     cctData.value = null
+    // 确保图表也更新为空状态
+    updateCctChart()
   }
 }
 
@@ -457,6 +465,9 @@ async function onImsNeChange() {
 
   // 切换网元时，先清空旧数据
   imsRealtimeRawData.value = []
+  busyHourData.value = null
+  mosData.value = null
+  cctData.value = null
 
   // 强制触发Vue响应式更新，确保所有计算值立即更新为默认状态
   await nextTick()
@@ -466,6 +477,10 @@ async function onImsNeChange() {
   updateFailedCallsChart()
   updateActiveRegistrationsChart()
   updateFailedRegistrationsChart()
+  updateCallAttemptsChart()
+  updateCallCompletionsChart()
+  updateMosChart()
+  updateCctChart()
 
   // 先获取历史数据和Busy Hour数据，再订阅实时数据
   await fetchHistoryData(selectedImsNeId.value)
@@ -1518,7 +1533,8 @@ function updateMosChart() {
         type: 'line', symbol: 'none',
         lineStyle: { width: 2, color: '#d9d9d9' },
         areaStyle: { color: 'rgba(217,217,217,0.1)' }
-      }]
+      }],
+      graphic: [] // 清除任何ECharts图形元素
     })
 
     // 清除所有旧标注
@@ -1531,7 +1547,7 @@ function updateMosChart() {
   }
 
   // 从MOS数据中提取MOS值
-  const chartData = mosData.value.map((item: any) => Number(item.mosAverage) || 0)
+  const chartData = mosData.value.map((item: any) => Number(item.mosSum) || 0)
 
   // 生成时间轴数据
   const xAxisData = Array.from({ length: chartData.length }, (_, i) => i + 1)
@@ -1617,7 +1633,8 @@ function updateMosChart() {
       z-index: 10;
     `
     // 使用第一个数据点的时间戳计算相对时间
-    const oldestTime = Number(mosData.value[0]?.timeGroup) || Date.now()
+    // MOS时间戳是秒级，需要转换为毫秒级
+    const oldestTime = (Number(mosData.value[0]?.timeGroup) || 0) * 1000 || Date.now()
     oldestTimeLabel.textContent = calculateRelativeTime(oldestTime)
 
     const nowTimeLabel = document.createElement('div')
@@ -1678,7 +1695,7 @@ function updateCctChart() {
   }
 
   // 从CCT数据中提取CCT值
-  const chartData = cctData.value.map((item: any) => Number(item.callConnectionTime) || 0)
+  const chartData = cctData.value.map((item: any) => Number(item.cctSum) || 0)
 
   // 生成时间轴数据
   const xAxisData = Array.from({ length: chartData.length }, (_, i) => i + 1)
@@ -1764,7 +1781,8 @@ function updateCctChart() {
       z-index: 10;
     `
     // 使用第一个数据点的时间戳计算相对时间
-    const oldestTime = Number(cctData.value[0]?.timeGroup) || Date.now()
+    // CCT时间戳是秒级，需要转换为毫秒级
+    const oldestTime = (Number(cctData.value[0]?.timeGroup) || 0) * 1000 || Date.now()
     oldestTimeLabel.textContent = calculateRelativeTime(oldestTime)
 
     const nowTimeLabel = document.createElement('div')
@@ -1880,60 +1898,10 @@ onMounted(() => {
     chart.setOption(defaultChartOption)
   }
 
-  // MOS - 保持原有的模拟数据
+  // MOS
   if (mosChartRef.value) {
     const chart = echarts.init(mosChartRef.value)
-    const mosData = [4.62, 4.50, 4.40, 4.35, 4.30]
-    const maxValue = Math.max(...mosData)
-    const minValue = Math.min(...mosData)
-    const latestValue = mosData[mosData.length - 1]
-
-    chart.setOption({
-      grid: { left: 0, right: 30, top: 10, bottom: 10 }, // 增加右侧边距
-      xAxis: { type: 'category', show: false, data: [1,2,3,4,5] },
-      yAxis: { type: 'value', show: false },
-      series: [{
-        data: mosData,
-        type: 'line',  symbol: 'none',
-        lineStyle: { width: 2, color: '#52c41a' },
-        areaStyle: { color: 'rgba(82,196,26,0.1)' }
-      }],
-      graphic: [
-        {
-          type: 'text',
-          right: 8,
-          top: 8,
-          style: {
-            text: maxValue.toFixed(2),
-            fontSize: 12,
-            fill: '#666',
-            fontWeight: 'bold'
-          }
-        },
-        {
-          type: 'text',
-          right: 8,
-          top: '50%',
-          style: {
-            text: latestValue.toFixed(2),
-            fontSize: 12,
-            fill: '#52c41a',
-            fontWeight: 'bold'
-          }
-        },
-        {
-          type: 'text',
-          right: 8,
-          bottom: 8,
-          style: {
-            text: minValue.toFixed(2),
-            fontSize: 12,
-            fill: '#666',
-            fontWeight: 'bold'
-          }
-        }
-      ]
-    })
+    chart.setOption(defaultChartOption)
   }
 
   // failed calls
@@ -2017,13 +1985,13 @@ function calculateMTValue() {
 
 // 计算MO变化值（完善版本）
 function calculateMOChange() {
-  if (imsRealtimeRawData.value.length < 2) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (imsRealtimeRawData.value.length < 2) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   // 获取最新和上一个数据点
   const latestData = imsRealtimeRawData.value[imsRealtimeRawData.value.length - 1]
   const previousData = imsRealtimeRawData.value[imsRealtimeRawData.value.length - 2]
 
-  if (!latestData?.data || !previousData?.data) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (!latestData?.data || !previousData?.data) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   const latestKpi = latestData.data
   const previousKpi = previousData.data
@@ -2032,31 +2000,31 @@ function calculateMOChange() {
   const previousMO = calculateMOValueFromData(previousKpi)
 
   // 检查MO是否有有效值
-  if (latestMO === '-' || previousMO === '-') return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (latestMO === '-' || previousMO === '-') return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   // 计算变化幅度
   const change = latestMO - previousMO
 
   // 检查是否有变化
-  if (change === 0) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (change === 0) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   const changeText = change > 0 ? `+${change.toFixed(2)}%` : `${change.toFixed(2)}%`
 
   // 计算时间差
   const timeDiff = calculateTimeDifference(latestData, previousData)
 
-  return `${changeText} ${t('views.perfManage.voiceOverView.last')} ${timeDiff}`
+  return `${t('views.perfManage.voiceOverView.last')} ${timeDiff} ${changeText}`
 }
 
 // 计算MT变化值（完善版本）
 function calculateMTChange() {
-  if (imsRealtimeRawData.value.length < 2) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (imsRealtimeRawData.value.length < 2) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   // 获取最新和上一个数据点
   const latestData = imsRealtimeRawData.value[imsRealtimeRawData.value.length - 1]
   const previousData = imsRealtimeRawData.value[imsRealtimeRawData.value.length - 2]
 
-  if (!latestData?.data || !previousData?.data) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (!latestData?.data || !previousData?.data) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   const latestKpi = latestData.data
   const previousKpi = previousData.data
@@ -2065,20 +2033,20 @@ function calculateMTChange() {
   const previousMT = calculateMTValueFromData(previousKpi)
 
   // 检查MT是否有有效值
-  if (latestMT === '-' || previousMT === '-') return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (latestMT === '-' || previousMT === '-') return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   // 计算变化幅度
   const change = latestMT - previousMT
 
   // 检查是否有变化
-  if (change === 0) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (change === 0) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   const changeText = change > 0 ? `+${change.toFixed(2)}%` : `${change.toFixed(2)}%`
 
   // 计算时间差
   const timeDiff = calculateTimeDifference(latestData, previousData)
 
-  return `${changeText} ${t('views.perfManage.voiceOverView.last')} ${timeDiff}`
+  return `${t('views.perfManage.voiceOverView.last')} ${timeDiff} ${changeText}`
 }
 
 // 计算时间差函数
@@ -2119,11 +2087,39 @@ function calculateRelativeTime(timestamp: number) {
   const diffHours = Math.floor(diffMinutes / 60)
 
   if (diffHours >= 1) {
-    return `${diffHours}h`
+    return `${diffHours} Hour`
   } else if (diffMinutes >= 1) {
+    return `${diffMinutes} Min`
+  } else {
+    return '1 Min'
+  }
+}
+
+// 计算MOS/CCT时间差函数（处理秒级时间戳）
+function calculateMosCctTimeDifference(latestData: any, previousData: any) {
+  // MOS/CCT的时间戳是秒级，需要转换为毫秒级
+  const latestTime = (Number(latestData.timeGroup) || 0) * 1000
+  const previousTime = (Number(previousData.timeGroup) || 0) * 1000
+
+  // 计算时间差（毫秒）
+  const diffMs = Math.abs(latestTime - previousTime)
+
+  // 转换为秒
+  const diffSeconds = Math.floor(diffMs / 1000)
+
+  // 转换为分钟
+  const diffMinutes = Math.floor(diffSeconds / 60)
+
+  // 转换为小时
+  const diffHours = Math.floor(diffMinutes / 60)
+
+  // 根据时间差返回合适的格式
+  if (diffHours > 0) {
+    return `${diffHours}h`
+  } else if (diffMinutes > 0) {
     return `${diffMinutes}m`
   } else {
-    return '1m'
+    return `${diffSeconds}s`
   }
 }
 
@@ -2161,13 +2157,13 @@ function calculateRegSuccessValue() {
 
 // 计算registration success变化值
 function calculateRegSuccessChange() {
-  if (imsRealtimeRawData.value.length < 2) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (imsRealtimeRawData.value.length < 2) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   // 获取最新和上一个数据点
   const latestData = imsRealtimeRawData.value[imsRealtimeRawData.value.length - 1]
   const previousData = imsRealtimeRawData.value[imsRealtimeRawData.value.length - 2]
 
-  if (!latestData?.data || !previousData?.data) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (!latestData?.data || !previousData?.data) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   const latestKpi = latestData.data
   const previousKpi = previousData.data
@@ -2176,20 +2172,20 @@ function calculateRegSuccessChange() {
   const previousRegSuccess = calculateRegSuccessValueFromData(previousKpi)
 
   // 检查registration success是否有有效值
-  if (latestRegSuccess === '-' || previousRegSuccess === '-') return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (latestRegSuccess === '-' || previousRegSuccess === '-') return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   // 计算变化幅度
   const change = latestRegSuccess - previousRegSuccess
 
   // 检查是否有变化
-  if (change === 0) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (change === 0) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   const changeText = change > 0 ? `+${change.toFixed(2)}%` : `${change.toFixed(2)}%`
 
   // 计算时间差
   const timeDiff = calculateTimeDifference(latestData, previousData)
 
-  return `${changeText} ${t('views.perfManage.voiceOverView.last')} ${timeDiff}`
+  return ` ${t('views.perfManage.voiceOverView.last')} ${timeDiff} ${changeText}`
 }
 
 // 辅助函数：从数据中计算registration success值
@@ -2265,13 +2261,13 @@ function calculateActiveCallsArrow() {
 
 // 计算active calls变化值
 function calculateActiveCallsChange() {
-  if (imsRealtimeRawData.value.length < 2) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (imsRealtimeRawData.value.length < 2) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   // 获取最新和上一个数据点
   const latestData = imsRealtimeRawData.value[imsRealtimeRawData.value.length - 1]
   const previousData = imsRealtimeRawData.value[imsRealtimeRawData.value.length - 2]
 
-  if (!latestData?.data || !previousData?.data) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (!latestData?.data || !previousData?.data) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   const latestKpi = latestData.data
   const previousKpi = previousData.data
@@ -2284,14 +2280,14 @@ function calculateActiveCallsChange() {
   const change = latestActiveCalls - previousActiveCalls
 
   // 检查是否有变化
-  if (change === 0) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (change === 0) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   const changeText = change > 0 ? `+${change.toFixed(0)}` : `${change.toFixed(0)}`
 
   // 计算时间差
   const timeDiff = calculateTimeDifference(latestData, previousData)
 
-  return `${changeText} ${t('views.perfManage.voiceOverView.last')} ${timeDiff}`
+  return ` ${t('views.perfManage.voiceOverView.last')} ${timeDiff} ${changeText}`
 }
 
 // 计算failed calls值
@@ -2370,13 +2366,13 @@ function calculateFailedCallsArrow() {
 
 // 计算failed calls变化值
 function calculateFailedCallsChange() {
-  if (imsRealtimeRawData.value.length < 2) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (imsRealtimeRawData.value.length < 2) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   // 获取最新和上一个数据点
   const latestData = imsRealtimeRawData.value[imsRealtimeRawData.value.length - 1]
   const previousData = imsRealtimeRawData.value[imsRealtimeRawData.value.length - 2]
 
-  if (!latestData?.data || !previousData?.data) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (!latestData?.data || !previousData?.data) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   const latestKpi = latestData.data
   const previousKpi = previousData.data
@@ -2393,14 +2389,14 @@ function calculateFailedCallsChange() {
   const change = latestFailedCalls - previousFailedCalls
 
   // 检查是否有变化
-  if (change === 0) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (change === 0) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   const changeText = change > 0 ? `+${change.toFixed(0)}` : `${change.toFixed(0)}`
 
   // 计算时间差
   const timeDiff = calculateTimeDifference(latestData, previousData)
 
-  return `${changeText} ${t('views.perfManage.voiceOverView.last')} ${timeDiff}`
+  return `${t('views.perfManage.voiceOverView.last')} ${timeDiff} ${changeText}`
 }
 
 // 计算active registrations值
@@ -2469,13 +2465,13 @@ function calculateActiveRegistrationsArrow() {
 
 // 计算active registrations变化值
 function calculateActiveRegistrationsChange() {
-  if (imsRealtimeRawData.value.length < 2) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (imsRealtimeRawData.value.length < 2) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   // 获取最新和上一个数据点
   const latestData = imsRealtimeRawData.value[imsRealtimeRawData.value.length - 1]
   const previousData = imsRealtimeRawData.value[imsRealtimeRawData.value.length - 2]
 
-  if (!latestData?.data || !previousData?.data) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (!latestData?.data || !previousData?.data) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   const latestKpi = latestData.data
   const previousKpi = previousData.data
@@ -2488,14 +2484,14 @@ function calculateActiveRegistrationsChange() {
   const change = latestActiveRegistrations - previousActiveRegistrations
 
   // 检查是否有变化
-  if (change === 0) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (change === 0) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   const changeText = change > 0 ? `+${change.toFixed(0)}` : `${change.toFixed(0)}`
 
   // 计算时间差
   const timeDiff = calculateTimeDifference(latestData, previousData)
 
-  return `${changeText} ${t('views.perfManage.voiceOverView.last')} ${timeDiff}`
+  return `${t('views.perfManage.voiceOverView.last')} ${timeDiff} ${changeText}`
 }
 
 // 计算failed registrations值
@@ -2574,13 +2570,13 @@ function calculateFailedRegistrationsArrow() {
 
 // 计算failed registrations变化值
 function calculateFailedRegistrationsChange() {
-  if (imsRealtimeRawData.value.length < 2) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (imsRealtimeRawData.value.length < 2) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   // 获取最新和上一个数据点
   const latestData = imsRealtimeRawData.value[imsRealtimeRawData.value.length - 1]
   const previousData = imsRealtimeRawData.value[imsRealtimeRawData.value.length - 2]
 
-  if (!latestData?.data || !previousData?.data) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (!latestData?.data || !previousData?.data) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   const latestKpi = latestData.data
   const previousKpi = previousData.data
@@ -2597,14 +2593,14 @@ function calculateFailedRegistrationsChange() {
   const change = latestFailedRegistrations - previousFailedRegistrations
 
   // 检查是否有变化
-  if (change === 0) return '±0.00%' +t('views.perfManage.voiceOverView.last') +'1m'
+  if (change === 0) return t('views.perfManage.voiceOverView.last') +' 1 Min'+' Smooth'
 
   const changeText = change > 0 ? `+${change.toFixed(0)}` : `${change.toFixed(0)}`
 
   // 计算时间差
   const timeDiff = calculateTimeDifference(latestData, previousData)
 
-  return `${changeText} ${t('views.perfManage.voiceOverView.last')} ${timeDiff}`
+  return `${t('views.perfManage.voiceOverView.last')} ${timeDiff} ${changeText}`
 }
 
 // Call Attempts相关计算函数
@@ -2642,16 +2638,16 @@ function calculateCallAttemptsArrow() {
 }
 
 function calculateCallAttemptsChange() {
-  if (!busyHourData.value || busyHourData.value.length < 2) return '±0 ' + t('views.perfManage.voiceOverView.last') + ' 1h'
+  if (!busyHourData.value || busyHourData.value.length < 2) return t('views.perfManage.voiceOverView.last') +' 1 Hour'+' Smooth'
 
   const latestValue = Number(busyHourData.value[busyHourData.value.length - 1].callAttempts) || 0
   const previousValue = Number(busyHourData.value[busyHourData.value.length - 2].callAttempts) || 0
 
   const change = latestValue - previousValue
-  if (change === 0) return '±0 ' + t('views.perfManage.voiceOverView.last') + ' 1h'
+  if (change === 0) return t('views.perfManage.voiceOverView.last') +' 1 Hour'+' Smooth'
 
   const changeText = change > 0 ? `+${change}` : `${change}`
-  return `${changeText} ` + t('views.perfManage.voiceOverView.last') + ' 1h'
+  return t('views.perfManage.voiceOverView.last') + ' 1 Hour'+ ` ${changeText}`
 }
 
 // Call Completions相关计算函数
@@ -2689,16 +2685,16 @@ function calculateCallCompletionsArrow() {
 }
 
 function calculateCallCompletionsChange() {
-  if (!busyHourData.value || busyHourData.value.length < 2) return '±0 ' + t('views.perfManage.voiceOverView.last') + ' 1h'
+  if (!busyHourData.value || busyHourData.value.length < 2) return t('views.perfManage.voiceOverView.last') +' 1 Hour'+' Smooth'
 
   const latestValue = Number(busyHourData.value[busyHourData.value.length - 1].callCompletions) || 0
   const previousValue = Number(busyHourData.value[busyHourData.value.length - 2].callCompletions) || 0
 
   const change = latestValue - previousValue
-  if (change === 0) return '±0 ' + t('views.perfManage.voiceOverView.last') + ' 1h'
+  if (change === 0) return t('views.perfManage.voiceOverView.last') +' 1 Hour'+' Smooth'
 
   const changeText = change > 0 ? `+${change}` : `${change}`
-  return `${changeText} ` + t('views.perfManage.voiceOverView.last') + ' 1h'
+  return t('views.perfManage.voiceOverView.last') + ' 1 Hour' +` ${changeText}`
 }
 
 // MOS相关计算函数
@@ -2707,15 +2703,15 @@ function calculateMosValue() {
 
   // 获取最新的MOS值（数组最后一个元素）
   const latestData = mosData.value[mosData.value.length - 1]
-  const mosValue = Number(latestData.mosAverage) || 0
+  const mosValue = Number(latestData.mosAvg) || 0
   return mosValue.toFixed(2)
 }
 
 function calculateMosArrowDirection() {
   if (!mosData.value || mosData.value.length < 2) return 'up'
 
-  const latestValue = Number(mosData.value[mosData.value.length - 1].mosAverage) || 0
-  const previousValue = Number(mosData.value[mosData.value.length - 2].mosAverage) || 0
+  const latestValue = Number(mosData.value[mosData.value.length - 1].mosAvg) || 0
+  const previousValue = Number(mosData.value[mosData.value.length - 2].mosAvg) || 0
 
   const change = latestValue - previousValue
   if (change > 0) return 'up'
@@ -2726,8 +2722,8 @@ function calculateMosArrowDirection() {
 function calculateMosArrow() {
   if (!mosData.value || mosData.value.length < 2) return '→'
 
-  const latestValue = Number(mosData.value[mosData.value.length - 1].mosAverage) || 0
-  const previousValue = Number(mosData.value[mosData.value.length - 2].mosAverage) || 0
+  const latestValue = Number(mosData.value[mosData.value.length - 1].mosAvg) || 0
+  const previousValue = Number(mosData.value[mosData.value.length - 2].mosAvg) || 0
 
   const change = latestValue - previousValue
   if (change > 0) return '↗'
@@ -2736,16 +2732,23 @@ function calculateMosArrow() {
 }
 
 function calculateMosChange() {
-  if (!mosData.value || mosData.value.length < 2) return '±0.00 ' + t('views.perfManage.voiceOverView.last') + ' 1h'
+  if (!mosData.value || mosData.value.length < 2) return t('views.perfManage.voiceOverView.last') +' 1 Hour'+' Smooth'
 
-  const latestValue = Number(mosData.value[mosData.value.length - 1].mosAverage) || 0
-  const previousValue = Number(mosData.value[mosData.value.length - 2].mosAverage) || 0
+  const latestData = mosData.value[mosData.value.length - 1]
+  const previousData = mosData.value[mosData.value.length - 2]
+
+  const latestValue = Number(latestData.mosAvg) || 0
+  const previousValue = Number(previousData.mosAvg) || 0
 
   const change = latestValue - previousValue
-  if (change === 0) return '±0.00 ' + t('views.perfManage.voiceOverView.last') + ' 1h'
+  if (change === 0) return t('views.perfManage.voiceOverView.last') +' 1 Hour'+' Smooth'
 
   const changeText = change > 0 ? `+${change.toFixed(2)}` : `${change.toFixed(2)}`
-  return `${changeText} ` + t('views.perfManage.voiceOverView.last') + ' 1h'
+
+  // 计算实际时间差
+  const timeDiff = calculateMosCctTimeDifference(latestData, previousData)
+
+  return t('views.perfManage.voiceOverView.last') + ' ' + timeDiff +` ${changeText}`
 }
 
 // CCT相关计算函数
@@ -2754,15 +2757,15 @@ function calculateCctValue() {
 
   // 获取最新的CCT值（数组最后一个元素）
   const latestData = cctData.value[cctData.value.length - 1]
-  const cctValue = Number(latestData.callConnectionTime) || 0
+  const cctValue = Number(latestData.cctAvg) || 0
   return cctValue.toFixed(2)
 }
 
 function calculateCctArrowDirection() {
   if (!cctData.value || cctData.value.length < 2) return 'up'
 
-  const latestValue = Number(cctData.value[cctData.value.length - 1].callConnectionTime) || 0
-  const previousValue = Number(cctData.value[cctData.value.length - 2].callConnectionTime) || 0
+  const latestValue = Number(cctData.value[cctData.value.length - 1].cctAvg) || 0
+  const previousValue = Number(cctData.value[cctData.value.length - 2].cctAvg) || 0
 
   const change = latestValue - previousValue
   if (change > 0) return 'up'
@@ -2773,8 +2776,8 @@ function calculateCctArrowDirection() {
 function calculateCctArrow() {
   if (!cctData.value || cctData.value.length < 2) return '→'
 
-  const latestValue = Number(cctData.value[cctData.value.length - 1].callConnectionTime) || 0
-  const previousValue = Number(cctData.value[cctData.value.length - 2].callConnectionTime) || 0
+  const latestValue = Number(cctData.value[cctData.value.length - 1].cctAvg) || 0
+  const previousValue = Number(cctData.value[cctData.value.length - 2].cctAvg) || 0
 
   const change = latestValue - previousValue
   if (change > 0) return '↗'
@@ -2783,16 +2786,23 @@ function calculateCctArrow() {
 }
 
 function calculateCctChange() {
-  if (!cctData.value || cctData.value.length < 2) return '±0.00 ' + t('views.perfManage.voiceOverView.last') + ' 1h'
+  if (!cctData.value || cctData.value.length < 2) return t('views.perfManage.voiceOverView.last') +' 1 Hour'+' Smooth'
 
-  const latestValue = Number(cctData.value[cctData.value.length - 1].callConnectionTime) || 0
-  const previousValue = Number(cctData.value[cctData.value.length - 2].callConnectionTime) || 0
+  const latestData = cctData.value[cctData.value.length - 1]
+  const previousData = cctData.value[cctData.value.length - 2]
+
+  const latestValue = Number(latestData.cctAvg) || 0
+  const previousValue = Number(previousData.cctAvg) || 0
 
   const change = latestValue - previousValue
-  if (change === 0) return '±0.00 ' + t('views.perfManage.voiceOverView.last') + ' 1h'
+  if (change === 0) return t('views.perfManage.voiceOverView.last') +' 1 Hour'+' Smooth'
 
   const changeText = change > 0 ? `+${change.toFixed(2)}` : `${change.toFixed(2)}`
-  return `${changeText} ` + t('views.perfManage.voiceOverView.last') + ' 1h'
+
+  // 计算实际时间差
+  const timeDiff = calculateMosCctTimeDifference(latestData, previousData)
+
+  return t('views.perfManage.voiceOverView.last') + ' ' + timeDiff + ` ${changeText}`
 }
 
 // 测试数据更新